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Generation 1 service keys are being deprecated in favor of Generation 2 IAM access keys. Gen 2 access keys can clearly be identified by its well known prefix format.Support for generation 1 Service keys will be removed January 31, 2026.
You use personalized, private service and ingestion keys associated with your account to connect Mezmo to third-party applications and services. They enable users, and programs such as log collectors to authenticate with Mezmo without requiring you to share your account details.
Anyone who has access to your service and ingestion keys can send or retrieve logs to or from your account with no additional authentication. Be sure to keep your API keys secret.

Security Best Practices

  • Rotate tokens regularly. Use expirations and rotate before they expire.
  • Grant only what you need. Prefer minimal scopes.
  • Use service accounts for automation. Avoid personal tokens in CI/CD.
  • Store tokens in environment variables or a secret manager. Do not hard‑code tokens.

There are two primary types of keys you can manage, Ingestion Keys and IAM Access Keys.

Ingestion Keys

Ingestion keys are used by log collectors like the Mezmo Agent to send log data to Mezmo, and are also used in commands for the Ingest API. You can have up to 10 ingestion keys active at a time.

IAM Access Keys

Identity and Access Management (IAM) access keys represents a significant step forward in enhancing the security of your interactions with our services. IAM access tokens offer several key advantages over the Generation 1 service keys, including:
  • Enhanced Security: IAM access keys provide more granular control over permissions and integrate with advanced security features, reducing the risk of unauthorized access.
  • Improved Auditing Capabilities: IAM Access keys offer enhanced auditing over legacy service keys, detailing who, what, when, and where actions occur. This improves security breach identification, suspicious activity investigation, and audit trails for compliance, offering clearer visibility for proactive security and efficient incident response.
  • Improved Flexibility: The new access key system allows for more flexible and dynamic management of access rights, enabling you to manage your integrations with greater precision.
  • Future-Proofing: This change aligns with industry best practices for secure access management, ensuring that our security infrastructure remains robust and adaptable to evolving threats.
There are three distinct types of IAM Access Keys, each of which can be identified by a unique prefix

Personal Access Keys (sta)

Personal Access Keys will be generally available End of Q1 2026
Personal Access Keys provide user-specific authentication for API operations. These keys are tied to individual user accounts and inherit the permissions of the user who created them. Personal Access Keys can be used for:
  • Accessing APIs with user-level permissions
  • Automating tasks that require user authentication
  • Integrating with third-party tools and services
  • Performing operations within the scope of the user’s access
Personal Access Keys are scoped to the user’s permissions and cannot exceed the access level of the user the access token is associated with. Individual users looking to explore the Mezmo Platform APIs should be encouraged to create Personal Access Keys to do so.

Service Accounts (sts)

A service account is a non-user identity that has its own key and its own permission set. Service accounts are associated with a Service Account Key for automation and CI/CD. These tokens are not associated with a normal user with in your organizations and as such, its level of access is only limited by the access it is granted. For this reason it is highly recommended that the ability to create service account and keys be reserved for account administrators. You can have up to 50 service accounts active at a time.

Enterprise Service Accounts (ste)

Enterprise Service Accounts and their access keys are associated with an enterprise rather than an individual Mezmo account. These types of access keys are enabled to perform operations and interactions across many accounts in an effort to streamline and optimized account management for large customers who may have many dozens to hundreds of accounts.
Enterprise Service Accounts are only available through our enterprise dashboard.

Access and Generate New Keys

  1. Log in to the Mezmo Web App.
  2. Go to Settings > Organization > API Keys.
  3. To generate additional ingestion keys, click Generate Ingestion Key for up to a total of 10 keys.
  4. To generate additional service accounts, click Create Service Account for up to a total of 50 keys.
  5. Remove an ingestion key by clicking the X next to it. Note that any applications actively using this key will no longer be able to send logs to your account
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Access to the API Keys through Settings > Organization

Manage Service Accounts and Keys

The keys table and its actions apply to your IAM Access Keys: personal access tokens, service accounts, and enterprise service accounts. Manage ingestion keys with the steps in Access and Generate New Keys above. After you create a key, it appears in a table with Name, Access, Created, and Actions columns. The Name column shows only a masked trailer of the secret, displayed as ····<trailer>, so the full key value never appears in the table. The Access column lists the key’s assigned roles or permissions. From the Actions column, the row actions available to you depend on the key type:
  • Rename is available for all key types.
  • Edit permissions is available for service accounts and enterprise service accounts, and only when role-based access management is enabled for your organization. It is not available for personal access tokens.
  • Rotate is available for service accounts only. It is not available for enterprise service accounts or personal access tokens.
  • Delete is available for all key types.
When you rotate a key, you confirm the action, then the current key stops working immediately and a new key is generated and shown to you once.
Rotating or deleting a key takes effect immediately and cannot be undone. Any integration or automation still using the old key stops working until you update it with the new key.
After you create or rotate a key, the full key value appears exactly once in a window with a copy control. It is not shown again, so copy and store it right away. This applies to all key types. The following table summarizes what each key type supports: For information on using IAM Access Keys to interact with the Mezmo platform APIs, see: Authenticating With The API